Finding the Fourth Proportional to 9,300.42, 12,832.56 and 5,322.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,300.42 : 12,832.56 = 5,322.78 : x
2. Step 2: Convert to fraction form
   9,300.42/12,832.56 = 5,322.78/x
3. Step 3: Cross multiply
   9,300.42x = 12,832.56 × 5,322.78
4. Step 4: Simplify right side
   9,300.42x = 68,304,893.72
5. Step 5: Solve for x
   x = 68,304,893.72/9,300.42
6. Step 6: Final answer
   x = 7,344.28